A Convenient Synthesis and Biological Evaluation of Novel Pseudonucleosides Bearing a Thiazolidin-4-one Moiety by Tandem Staudinger/Aza-Wittig/Cyclization
Novelpseudonucleosides 3 and 4 bearing a thiazolidin-4-onemoiety were firstly synthesized by a one-pot, multicomponent, tandemStaudinger/aza-Wittig/intermolecular nucleophilic addition/intramolecular cyclization process in good yields of 43.8–88.0 %. Deacetylation of 3 and 4 afforded compounds 5 and 6, respectively. The structures of the new compounds were determined on the basis of the X-ray crystal